Home / 138,723.80-208,094.94-48,755.64

Finding the Fourth Proportional to 138,723.80, 208,094.94 and 48,755.64

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Solution

The fourth proportional to 138,723.80, 208,094.94 and 48,755.64 is: 73,136.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,723.80 : 208,094.94 = 48,755.64 : x
  2. Step 2: Convert to fraction form
    138,723.80/208,094.94 = 48,755.64/x
  3. Step 3: Cross multiply
    138,723.80x = 208,094.94 × 48,755.64
  4. Step 4: Simplify right side
    138,723.80x = 10,145,801,980.46
  5. Step 5: Solve for x
    x = 10,145,801,980.46/138,723.80
  6. Step 6: Final answer
    x = 73,136.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.